American astronaut duo Doug Hurley and Bob Behnken prepared on Saturday to begin their return journey to Earth from the ISS International Space Station. However, the return of the duo was still uncertain in Finnish time in the evening, as Hurricane Isaias approached Florida.

The astronaut capsule is scheduled to land in the Atlantic off Florida late Sunday Finnish time. The U.S. space agency NASA was scheduled to make a decision on the return as early as Saturday night.

Astronauts return from the space station on the crew of a private SpaceX company. When the duo arrived at the space station at the end of May, it was the first time astronauts had been transported to the space station by an American spacecraft in nearly a decade.

For the previous nine years, astronauts were taken to the space station by Russian Soyuz rockets.